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Ambient Temperature Sensor: Inspection

  1. INSPECT COOLER THERMISTOR (AMBIENT TEMPERATURE SENSOR) 
    1. Measure the resistance of the thermistor.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      1 - 2 25°C (77°F) 1.62 to 1.79 kΩ
      1 - 2 40°C (104°F) 0.55 to 0.65 kΩ
      Fig 1: Identifying Cooler Thermistor Connector Terminal
      G05292053Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the result is not as specified, replace the thermistor.

      HINT:

      As the temperature increases, the resistance decreases.

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